Carding machine



Sept. 3, 1929. L. w. PENNEY ET AL 1,726,919

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UNlTED STATES PATENT OFFICE.

LOREII W. PENNEY, OF NEWTON HIGHLANDS, AND HER-BERT LE. CHILD, OF NEWTOFI UPPER FALLS, MASSACHUSETTS, ASSIGNOBS TO SACO-LOWELL SHOPS, OF LOWELL, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

GARDING MACHINE.

Application filed February 2, 1928.

This invention relates to carding machines and will be herein disclosed as embodied in a cotton card, although the invention is also applicable to woolen cards.

It has been found useful to apply to a carding machine a roll carrying teeth or needles, revolving in the opposite direction to the direction of rotation of the card cyl-- inder, and so positioned that its teeth will penetrate between the teeth of the card clothing and loosen the fibres thereon. Such a roll is shown and described in United States patent to Bredbury No. 1,598,800, issued September 7, 1926, and is preferably located between the lickerin and the flats or workers. Such a roll is sometimes called a loosening roll or a stripper roll, and in this specification we will use the latter term.

The present invention deals especially with the mounting of such a roll in the card and the driving of the roll. It is the chief object of the invention to devise mechanisms for supporting and driving a stripper roll which will permit the installation of such a roll on either new or old machines with a minimum of labor and expense. In some cases it is desirable to give the stripper roll atraversing movement as well as a rotary motion, and one of the objects of this in vention is to devise a simple and reliable mechanism for producing such a traversing movement.

The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the novel features will be particularly pointed out in the appended claims.

Tn the drawings,

Figure 1 is a side elevation of a portion of a carding machine equipped with mecha nism embodying features of this invention;

Fig. 2 is a side view showing more particularly certain features of the supporting mechanism for the stripper roll and the means for giving it a traversing movement;

Fig. 3 is a front view, partly in crosssection, of the parts shown in Fig. 2;

Fig. 4 is a view, partly in cross-section and partly in elevation, of the driving mechanism for the stripper roll;

Fig. 5 is a side view showing details-of the supporting mechanism for the stripper roll;

Serial No. 251,853.

Fig. 6 is a front view of the mechanism shown in Fig. 5; and

F ig. 7 is a cross-sectional view on the line 77, Fig. 5.

Referring first to Fig. 1, the card cylinder is indicated at 2, the revolving flats at 3, the lickerin casing at 4c, and the stripper roll at 5. The stripper roll is here shown in its preferred location, just above the lickerin.

In order to provide increased space for the accommodation of the stripper roll, the usual stands which support the rolls for the revolving travellers at this end of the machine have been replaced by special stands 66', these stands being bolted to the machine frame at opposite ends of the card cylinder. Each of these stands has an upwardly curved end portion to carry the rolls or sprockets, or the combined rolls and sprockets, as the case may be, which support the travelling flats. Referring more especially to Figs. 1 and 5 it will be seen that the shank of the stand 6 is secured to the frame plate 7 by a bolt 8 projecting through a slot 9. An adjusting bolt 10 is threaded into the shank of the stand longitudinally thereof and connect-s the stand with the frame, this arrangement of the bolts permitting the adjustment of the stand to move the roll or sprocket 12 which supports the flats toward or from the cylinder 2. The frame plate 7 is provided with portions 11, best shown in Fig. 7 which guide the stand 8 during its adjusting movement and assist in holding itin its operative position. The same construction is used at the opposite end of the machine, as shown in Figs. 2 and 3, corresponding parts being designated by primed numerals.

A screw 13 is threaded through the stand 6 and has an eccentrically positioned end projecting into a slot 14, Fig. 5, in the flexible bend 15 so that this bend can be adjusted in or out by turning the screw 13, the screw being locked in its adjusted position by a check nut 16.

For the purpose of supporting the stripper roll 5 in its operative position, the stand 6 is provided with a. depending lug 18, best shown in Figs. 6 and 7, on which another stand 19 is mounted, the lug 18 beingprovided with guides '20 similar to the guides 11. The stand 19 is secured to the lug 18 the machine.

by a bolt 21 extending through a slot 22, and it may be moved on the guides 20-20 by means of an adjusting bolt 23 which is rotatably mounted in a lug 24, Fig. 7 projecting backwardly from the stand 19, the threads of the screw taking into the lug 18 of the stand 6. By curving the outer end of the stand 6 upwardly and the corresponding end of the stand 19 downwardly, the desired space is provided between the axis of the stripper roll and the sprockets or rolls 12-12, the stand 9 having a forked end 25 to support the stripper roll. The

stripper roll 5 is enclosed in a housing or casing 27 which preferably is supported on the bearing members 2828 for the stripper roll shaft 29, and this arrangement permits the stripper roll with its casing to be lifted out of its supporting stands 1919, or to be returned thereto whenever desired. At the sametime these stands are so mounted that the stripper roll can be adjusted very accurately toward or from the periphery of the cylinder. This is desirable in order to adjust the depth to which the teeth of the stripper will penetrate the card clothing.

The stripper casing 27 is open at one side, as shown in Fig. 2, and the edges of the casing fit against the edges of upper and lower plates 30and 31, respectively, which extend across the periphery of the cylinder [from one end of the machine to the other.

In order to support the upper plate 30 in its operative position, make-up pieces 3232 are bolted'to opposite ends of the frame and carry this plate.

Referring to Figs. 5 and 6 it will be seen that the upper-end of the piece 32 is curved outwardly to clear the flexible bend 15, and a bridge piece 33 is bolted or riveted at one end to the part 32 and at its opposite end to the plate 30. The same construction is used at the opposite end of the machine, the bridge piece being indicated at 33 in Fig. 2. This plate 30 substantially covers the space lfoletween the stripper roll and the revolving ats. i

The mechanism for giving the stripper roll its rotary motion is best shown in Figs.

1 and 4. This mechanism is driven from the cylinder shaft 35. Mounted on this shaft is a loose pulley 36 and a fast pulley 37 designed to receive the driving belt for Bolted to the inner side of the fast pulley 37 is an internal gear 38 which drives an intermediate gear 40 meshing with and driving a spur gear 41. This spur gear is secured by a key 39 to the hub of a sprocket wheel 42 mounted to revolve on the hub portion 43 of a disk-like member 44 which carries the shaft 45 for the intermediate gear 40. Preferably the sprocket wheel 42 is shaped to partly enclose the gears above mentioned, as best shown in Fig. 4, the web of the wheel being provided with apertures 46 to permit inspection and oiling of the gears. The toothed peripheral portion 47 of this wheel encircles the internal gear 38 and a chain 48, Fig. 1, driven by this wheel drives a sprocket wheel 50 which is secured on the end of the stripper shaft 29. Usually it is preferable to drive the stripper roll at a slightly greater circumferential speed than the cylinder 2, and the gearing above described accomplishes this result.

As shown, the intermediate gearing between the spur gear 41 and the internal gear 38, consists simply of one spur gear 40, al-

though under some circumstances a driving mechanism organized in essentially this manner may be used in which a greater number of intermediate gears will be employed. In the arrangement shown it is essential to prevent this intermediate gear from revolving around the axis of the cylinder shaft 35, and for this purpose a part 51 consisting of adisk of dished form is secured to the hub 43 of the member which carries the intermediate roll, and this part 51 is provided with a notch or slot to receive a locking dog 52 pivoted at 53 on one of the bearing brackets 54 for the cylinder shaft 35. In this connection it may be noted that Fig. 4 is not a true section on the line 4-4, Fig. l, the plane of section being swung to include the dog 52 and the lubricating duct 55. This arran ement holds the part 44 stationary, the shaft 35 revolving in the hub portion 43 of said part. For convenience in oiling, a hole 55 is drilled through a portion of the disk 51 from the bottom of the slot therein to the inner surface of the disk, this hole opening on to the end of the bearing surface of the hub 43 on which the wheel 42 revolves. Another hole 56 is drilled vertically through the end of the dog 52 to register with the upper end of the hole 55. Consequently, oil delivered to the hole 56 will find its Way to the bearing surface between the hub 43 and wheel 42.

As above stated, it is usually desirable to give the stripper roll 5 a traversing movement and for this purpose a grooved collar 58, Fig. 3, is secured to one end of the stripper roll shaft 29. The lower end of a lever 60 is located in the'groove provided in this collar, this lever being fulcrunied on a stud 61 mounted in a small bracket 62 which is secured to the stand 6. The upper end of this lever carries a screw threaded stud 63 adjustably mounted in the lever 60 and projecting through a slot 64 in the stand 6' with its inner end bearing against a cam face 65 formed in the end face of the roll 12 on which the revolving flats run. Preferably this roll is a combined roll and sprocket wheel, as shown in Figs. 2 and 3, so that it is positively driven by the flats. A strong spring 66 coiled around the pivot stud 61 for the lever 60 acts on this lever in a direction serving to hold the end of the stud 63 in contact with the cam face 65. This arrangement thus provides a very simple mechanism for traversing the stripper roll 5.

In lifting the stripper roll out of its supporting stands 1919 the collar 58 simply slips out of contact with the lever 60, this lever offering no substantial resistance to the removal or replacement of the stripper roll.

It will now be appreciated that this invention provides a very simple arrangement for supporting and driving a stripper roll. The supporting parts are sturdy and substantial in construction, and both these parts and the mechanisms for driving the roll can be applied to a carding machine with relatively little labor. The adjustments necessary can be made quickly and accurately, and the stripper roll can be removed and replaced easily whenever necessary for inspection or repair.

While we have herein shown and described a preferred embodiment of our invention, it will be understood that the various features of the invention may be emoodied in other forms without departing from the spirit or scope thereof.

Having thus described our invention, What we desire to claim as new is:

1. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, revolving flats cooperating with said cylinder, two stands bolted to the machine frame at opposite ends of the cylinder, two additional stands at opposite ends of the cylinder and mounted, respectively, on the firstmentioned stands, said stripper roll being supported by one pair of said stands, and guide rolls for the revolving flats mounted on the other pair of said stands.

2. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, revolving flats cooperating with said cylinder, two stands bolted to the machine frame at opposite ends of the cylinder, two additional stands at opposite ends of the cylinder and mounted, respectively, on the first mentioned stands, said stripper roll being supported by said additional stands each of said first mentioned stands having a lug provided with guides on which its respective additional stand is mounted for adjustment to change the relationship of said roll to the cylinder, and guide rolls for the revolving flats mounted on the first mentioned stands.

3. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, revolving flats cooperating with said cylinder, two stands bolted to the machine frame at opposite ends of the cylinder, said stands having upwardly curved ends, guide rolls for the revolving flats mounted on said upwardly curved ends, two additional stands at opposite ends of the cylinder mounted, respectively, on the first mentioned stands and having downwardly curved ends, a stripper roll supported on said downwardly curved ends, and means whereby said stripper roll can be adjusted relatively to said cylinder.

4. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, revolving flats cooperating with said cylinder, two stands bolted to the machine frame at opposite ends of the cylinder, two additional stands at opposite ends of the cylinder and mounted, respectively, on the first mounted stands, said stands being adjustable individually toward and from the axis of said cylinder, said stripper roll being supported by one pair of said stands, and guide rolls for the revolving flats mounted on the other air of said stands.

5. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder. revolving flats cooperating with said cylinder, two stands bolted to the machine frame at opposite ends of the cylinder, two additional stands at opposite ends of the cylinder and mounted, respectivel on the first mentioned stands, each of said first mentioned stands having a lug provided with guides on which its respective additional stand is mounted for adjustment toward and from the axis of said cylinder, screw threaded means including thrust screws for securing all of said stands in their operative positions, saiu stripper roll being supported on one pair of said stands, and guide rolls for the revolving flats mounted on the other pair of said stands.

6. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, revolving flats cooperating with said cylinder, guide rolls supporting said flats, stands mounted at opposite ends of said cylinder and adjacent to said stripper roll, said stands supporting one pair of said guide rolls, and mechanism for giving said stripper roll traversing movement including a lever, and a cam on one of said guide rolls cooperating with said lever to give it a rocking movement.

7. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, revolving flats cooperating with said cylinder, guide rolls supporting said flats, stands mounted at opposite ends of said cylinder and adjacent to said stripper roll, said stands supporting one pair of said guide rolls, and mechanism for giving said stripper roll a traversing movement including a lever fulcrumed on one of said stands and a cam on the end face of one of said guide rolls cooperating with said lever to rock it on its fulcrum.

8. In a carding machine, the combination of a card cylinder, astripper roll for said cylinder, and driving mechanism for said roll including two gears of different diameters mounted to rotate about the axis of said cylinder, one of said gears being fast on the cylinder shaft, intermediate gearing for driving one of said gears from the other, and

driving connections between the gear so driven and said roll.

9. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder including a gear mounted to revolve with the cylinder shaft, a second gear, intermediate gearing for driving said second gear from said first gear, and flexible driving connections between said second gear and said roll.

10. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder including an internal gear mounted to revolve with the cylinder shaft, a spur gear mounted to revolve around said shaft, intermediate gearing for driving said spur gear from said internal gear, a member mounted to revolve with said spur gear, and driving connections between said member and said roll.

11. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder including an internal gear mounted to revolve with the cylinder shaft, a spur gear mounted to revolve around said shaft, a part having a hub mounted on said shaft, said spur gear being mount-ed to revolve on said hub, an intermediate gear carried by said part and meshing with said spur gear and said internal gear, means for holding said part against rotation, a wheel revoluble with said spur gear, and flexible driving connections between said wheel and said roll.

12. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder including an internal gear mounted to revolve with the cylinder shaft, a spur gear mounted to revolve around said shaft, a part having a hub mounted on said shaft, said spur gear being mounted to revolve on said hub, an intermediate gear carried by said part and meshing with said spur gear and said internal gear, means for holding said part against rotation, a wheel revoluble with said spur gear and having a circumferential driving portion encircling said gearing, said wheel forming a casing to protect said gearing, and flexible driving connections between said wheel and said roll.

13. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, and driving mechanism for said roll including a pulley on the cylinder shaft, an internal gear secured to said pulley, a spur gear mounted to revolve about the axis of said shaft, an intermediate gear meshing with said internal and spur gears, a rotary member driven by said spur gear and having a part encircling all of said gears, and driving connections between said member and said roll.

14. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, and driving mechanism for said roll including a pulley on the cylinder shaft, an internal gear secured to said pulley, a s our gear mounted to revolve about the axis of said shaft, an intermediate gear meshing with said internal and spur gears, a sprocket wheel driven by said spur gear and having a circumferential row of teeth encircling the spur gear, a sprocket wheel on the shaft of said stripper roll, and a chain connecting said sprocket wheels.

15. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, and driving mechanism for said roll, including a pulley fast on the cylinder shaft, an internal gear secured to said pulley, a spur gear mounted to revolve about the axis of said shaft, intermediate gearing connecting said internal and spur gears, a member revolving with said spur gear, and driving connections between said member and said stripper roll.

16. In a carding machine, the combination of a card cylinder, a stripper roll for said cylinder, and driving mechanism for said roll including a pulley fast on the cylinder shaft, an internal gear secured to said pulley, a spur gear mounted to revolve about the axis of said shaft, an intermediate gear meshing with said internal and spur gears, a member revolving with said spur gear, and flexible driving connections between said member and said stripper roll.

In testimony whereof we have hereunto signed our names to this specification.

LOREN IV. PENNEY. HERBERT E. CHILD. 

